Hello.  Im Developing a lemonade based game and i have a question.  How do you pass information through classes is basically it.  The first class handles the menus that occur between game days (what inventory do you want to purchse...type question) the second class handles the animation and the processing of the game day information.  I have a third class called inventoryItem.  This class is created for each inventory item to handle things like the number of that item, ect.
--> inventoryItem Hamburger = new inventoryItem();  //ex
 How can I pass the inventoryItem to the second class, make changes to it and then get those change back to the first class and visa versa?  (Im a c++ programmer and java is weird to me without the pass by value/reference stuff in c++)
Any help would greatly be aprreciated!

Hello.  Im Developing a lemonade based game and i have a question.  How do you pass information through classes is basically it.  The first class handles the menus that occur between game days (what inventory do you want to purchse...type question) the second class handles the animation and the processing of the game day information.  I have a third class called inventoryItem.  This class is created for each inventory item to handle things like the number of that item, ect.
--> inventoryItem Hamburger = new inventoryItem();  //ex
 How can I pass the inventoryItem to the second class, make changes to it and then get those change back to the first class and visa versa?  (Im a c++ programmer and java is weird to me without the pass by value/reference stuff in c++)
Any help would greatly be aprreciated!

I am making a game that will require a menu driven gui which i built using swing.  When the play makes their slections in the menus, they will start the game day which is simply an animation, (no interaction from the user)  after the game day is completed, they will return to the swing menus with the update info about their  new profit, and inventory.  My problem is, I dont know what fashion to display the animation in.  DO I use a JPanel with a graphic2d in it?  DO you use a new frame?  And if I can keep the animation in the same window, how do I earase the menue display the animation where the mneu was then redisplay it?  If anyone caould help, please do, I would appreciate it!